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| author | Tim Chen <tim.c.chen@linux.intel.com> | 2013-05-01 12:52:50 -0700 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2013-05-24 17:55:27 +0800 |
| commit | 0b95a7f85718adcbba36407ef88bba0a7379ed03 (patch) | |
| tree | 1ae5bf45259fb38a7a6031fbec584c9696a5ce2b /crypto | |
| parent | 31d939625a9a20b1badd2d4e6bf6fd39fa523405 (diff) | |
| download | lwn-0b95a7f85718adcbba36407ef88bba0a7379ed03.tar.gz lwn-0b95a7f85718adcbba36407ef88bba0a7379ed03.zip | |
crypto: crct10dif - Glue code to cast accelerated CRCT10DIF assembly as a crypto transform
Glue code that plugs the PCLMULQDQ accelerated CRC T10 DIF hash into the
crypto framework. The config CRYPTO_CRCT10DIF_PCLMUL should be turned
on to enable the feature. The crc_t10dif crypto library function will
use this faster algorithm when crct10dif_pclmul module is loaded.
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig index ceb3611efe44..d1ca6312d798 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -384,6 +384,17 @@ config CRYPTO_CRCT10DIF a crypto transform. This allows for faster crc t10 diff transforms to be used if they are available. +config CRYPTO_CRCT10DIF_PCLMUL + tristate "CRCT10DIF PCLMULQDQ hardware acceleration" + depends on X86 && 64BIT && CRC_T10DIF + select CRYPTO_HASH + help + For x86_64 processors with SSE4.2 and PCLMULQDQ supported, + CRC T10 DIF PCLMULQDQ computation can be hardware + accelerated PCLMULQDQ instruction. This option will create + 'crct10dif-plcmul' module, which is faster when computing the + crct10dif checksum as compared with the generic table implementation. + config CRYPTO_GHASH tristate "GHASH digest algorithm" select CRYPTO_GF128MUL |